Home / 39,931.35-59,897.03-18,864.47

Finding the Fourth Proportional to 39,931.35, 59,897.03 and 18,864.47

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Solution

The fourth proportional to 39,931.35, 59,897.03 and 18,864.47 is: 28,296.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,931.35 : 59,897.03 = 18,864.47 : x
  2. Step 2: Convert to fraction form
    39,931.35/59,897.03 = 18,864.47/x
  3. Step 3: Cross multiply
    39,931.35x = 59,897.03 × 18,864.47
  4. Step 4: Simplify right side
    39,931.35x = 1,129,925,331.72
  5. Step 5: Solve for x
    x = 1,129,925,331.72/39,931.35
  6. Step 6: Final answer
    x = 28,296.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.